Finding the Fourth Proportional to 16,906.79, 23,321.48 and 10,188.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,906.79 : 23,321.48 = 10,188.15 : x
2. Step 2: Convert to fraction form
   16,906.79/23,321.48 = 10,188.15/x
3. Step 3: Cross multiply
   16,906.79x = 23,321.48 × 10,188.15
4. Step 4: Simplify right side
   16,906.79x = 237,602,685.52
5. Step 5: Solve for x
   x = 237,602,685.52/16,906.79
6. Step 6: Final answer
   x = 14,053.69